 @import 'variables';

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #f5f7fa;
  color: #333;
  line-height: 1.6;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  padding: 20px;
  display: flex;
  justify-content: center; 
  align-items: center;
  min-height: 100vh
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }
}

/* 显示/隐藏控制 */
.mobile-only {
  display: block;
}
.desktop-only {
  display: none;
}

@media (min-width: 768px) {
  .mobile-only {
    display: none;
  }
  .desktop-only {
    display: block;
  }
  .padding-sm {
    padding: 20px;
  }
}

/* 响应式间距 */
.padding-sm {
  padding: 10px;
}
